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  • Correlated Quantum Materials: Exploring spin transport in iridate thin films and single crystals
Correlated Quantum Materials: Exploring spin transport in iridate thin films and single crystals

Correlated Quantum Materials: Exploring spin transport in iridate thin films and single crystals

Date3rd Dec 2020

Time03:00 PM

Venue Webinar

PAST EVENT

Details

Spin current generation and detection has become one of the intriguing areas of research in recent times. Spin current generated through spin-Hall magnetoresistance (SMR) technique has been proved as a tool to probe the interfacial magnetic ordering in a Metal/Magnetic Insulator (MI) heterostructures, which otherwise requires sophisticated synchrotron facilities. Some of the strongly correlated oxides exhibit a plethora of exotic properties from unconventional superconductivity to existence of topological phases due to their strong interplay between spin orbit coupling and coulomb correlations. In iridates the oxygen non-stoichiometry will have drastic effects in changing Ir-O-Ir bond angle which will affect the crystal structural and electronic band structure that can in turn change the spin-Hall conductivity which is proposed theoretically. Recent studies have revealed that oxygen content evolution can drive the system to novel ground states as Ir5+ has an intrinsic magnetic order. We propose a systematic study to probe correlation of oxygen kinetics and strain effects in pyrochlore iridate single crystals as well as SMR studies in thin films to construct a detailed magnetic phase diagram. This will help the scientific community to bridge a gap between probing novel magnetic phases through SMR studies in conjunction with synchrotron measurements which needs to be addressed through experiments and theoretical studies.

Speakers

Ms. Sreya Suresh, PH17D046

Physics Office